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Orr has piled up more than 100 penalty minutes each of the past three seasons, amassing 52 fighting majors during his time with the Rangers. The 27-year-old forward is joining his third Original Six team, the third being Boston.

Meanwhile, the Rangers recouped in a hurry by adding veteran heavyweight Donald Brashear. The deal is for two years at $1.4 million a season.

Brashear, 6-3, 237 pounds, led the Washington Capitals with 121 penalty minutes, and had one goal and four points in 63 games.

In 989 career games with Montreal, Vancouver, Philadelphia and Washington, Brashear has 85 goals, 204 points and 2,561 penalty minutes.

Brashear was suspended by the NHL for a total of six games -- five for a "blind-side hit" on Rangers center Blair Betts -- during the teams' first-round playoff series.

Pierre LeBrun is an NHL writer for ESPN.com. Information from The Associated Press was used in this report.